Hello everyone. I'm new to calibre, but I'm a huge e-book fan. I read using my droid. I love having all these books available in a compact format wherever I go. However, I am having trouble installing calibre on my PC. Whenever I go to install it an error message comes up saying " the system administrator has set policies preventing this installation." I'm not very computer savy, but I did try and turn off the firewall and that didnt work. Any suggestions?